There is almost no information about her. According to geneanet, she married Marquis Justin de Chasseloup-Laubat in 1835. He died in 1847 without heirs. She then married his brother Justin Prudent de Chasseloup-Laubat, now Marquis upon his brother’s passing, in 1850. She died in 1860 without heirs. He went on and remarried in 1863 and died without heirs.
From the museum’s Web site; enlarged by half.
The Marquise’s very wide coiffure could almost have been worn by one of the Mancinis in the 1600s. All of the visible bodice is pleated.
Keywords: 1831, Court, Marie Augustine Antoinette Le Boucher des Fontaines, Marquise Chasseloup-Laubat, Le Boucher des Fontaines family, de Chasseloup-Laubat family, Marquise, French, neo-hurluberlu coiffure, braided bun, ferroniere, earrings, chemise, scoop neckline, pleated criss-cross bodice, draped jeweled bodice ornament, dual upper puffed sleeves, tight cuffs, bracelets, belt, jeweled buckle, full skirt, gloves, folding fan